288 lines
9.9 KiB
JavaScript
288 lines
9.9 KiB
JavaScript
// server.js
|
||
require('dotenv').config();
|
||
const express = require('express');
|
||
const mysql = require('mysql2/promise');
|
||
const bodyParser = require('body-parser');
|
||
const path = require('path');
|
||
const axios = require('axios');
|
||
const { uploadTrendsCsv } = require('./s3');
|
||
|
||
const app = express();
|
||
const PORT = process.env.PORT || 3000;
|
||
|
||
// In-memory shift counters
|
||
const shiftCounters = {};
|
||
|
||
// Helpers
|
||
const pad2 = n => n.toString().padStart(2, '0');
|
||
|
||
function shortEST(d) {
|
||
const est = new Date(d.toLocaleString('en-US', { timeZone: 'America/New_York' }));
|
||
const M = est.getMonth() + 1, D = est.getDate(), YY = String(est.getFullYear()).slice(-2);
|
||
const hh = pad2(est.getHours()), mm = pad2(est.getMinutes());
|
||
return `${M}/${D}/${YY} @${hh}:${mm}`;
|
||
}
|
||
|
||
function formatDateEST(d) {
|
||
const est = new Date(d.toLocaleString('en-US', { timeZone: 'America/New_York' }));
|
||
const y = est.getFullYear(), M = pad2(est.getMonth()+1), D = pad2(est.getDate());
|
||
const hh = pad2(est.getHours()), mm = pad2(est.getMinutes()), ss = pad2(est.getSeconds());
|
||
return `${y}-${M}-${D} ${hh}:${mm}:${ss}`;
|
||
}
|
||
|
||
function computeHeatIndex(T, R) {
|
||
const [c1,c2,c3,c4,c5,c6,c7,c8,c9] =
|
||
[-42.379,2.04901523,10.14333127,-0.22475541,
|
||
-0.00683783,-0.05481717,0.00122874,0.00085282,-0.00000199];
|
||
const HI = c1 + c2*T + c3*R + c4*T*R
|
||
+ c5*T*T + c6*R*R + c7*T*T*R
|
||
+ c8*T*R*R + c9*T*T*R*R;
|
||
return Math.round(HI * 100) / 100;
|
||
}
|
||
|
||
function getShiftInfo(now) {
|
||
const est = new Date(now.toLocaleString('en-US', { timeZone:'America/New_York' }));
|
||
const h = est.getHours(), m = est.getMinutes();
|
||
let shift, start = new Date(est);
|
||
|
||
if (h > 7 || (h === 7 && m >= 0)) {
|
||
if (h < 17 || (h === 17 && m < 30)) {
|
||
shift = 'Day'; start.setHours(7,0,0,0);
|
||
} else {
|
||
shift = 'Night'; start.setHours(17,30,0,0);
|
||
}
|
||
} else {
|
||
shift = 'Night';
|
||
start.setDate(start.getDate()-1);
|
||
start.setHours(17,30,0,0);
|
||
}
|
||
|
||
const key = `${shift}-${start.toISOString().slice(0,10)}-${start.getHours()}${start.getMinutes()}`;
|
||
return { shift, start, key, estNow: est };
|
||
}
|
||
|
||
async function fetchCurrentWeather() {
|
||
const key = process.env.WEATHER_API_KEY, zip = process.env.ZIP_CODE;
|
||
if (!key || !zip) return 'Unavailable';
|
||
try {
|
||
const { data } = await axios.get(
|
||
'https://api.openweathermap.org/data/2.5/weather',
|
||
{ params:{ zip:`${zip},us`, appid:key, units:'imperial' } }
|
||
);
|
||
const desc = data.weather[0].description.replace(/^\w/, c => c.toUpperCase());
|
||
const hi = Math.round(data.main.temp_max);
|
||
const hum = data.main.humidity;
|
||
return `${desc}. Hi of ${hi}, Humidity ${hum}%`;
|
||
} catch (e) {
|
||
console.error('Weather API error:', e.message);
|
||
return 'Unavailable';
|
||
}
|
||
}
|
||
|
||
// MariaDB pool
|
||
const pool = mysql.createPool({
|
||
host: process.env.DB_HOST,
|
||
port: parseInt(process.env.DB_PORT,10)||3306,
|
||
user: process.env.DB_USER,
|
||
password: process.env.DB_PASSWORD,
|
||
database: process.env.DB_NAME,
|
||
waitForConnections: true,
|
||
connectionLimit: 10,
|
||
queueLimit: 0,
|
||
connectTimeout: 10000
|
||
});
|
||
|
||
// Ensure table exists
|
||
(async()=>{
|
||
const sql=`
|
||
CREATE TABLE IF NOT EXISTS readings(
|
||
id INT AUTO_INCREMENT PRIMARY KEY,
|
||
location VARCHAR(20) NOT NULL,
|
||
stationDockDoor VARCHAR(10) NOT NULL,
|
||
timestamp DATETIME NOT NULL,
|
||
temperature DOUBLE,
|
||
humidity DOUBLE,
|
||
heatIndex DOUBLE
|
||
);`;
|
||
await pool.execute(sql);
|
||
})();
|
||
|
||
// Middleware & static (serve heatmap.html as index)
|
||
app.use(bodyParser.json());
|
||
const publicDir = path.join(__dirname,'public');
|
||
app.use(express.static(publicDir, { index: 'heatmap.html' }));
|
||
|
||
// SSE setup
|
||
let clients = [];
|
||
app.get('/api/stream',(req,res)=>{
|
||
res.set({
|
||
'Content-Type':'text/event-stream',
|
||
'Cache-Control':'no-cache',
|
||
Connection:'keep-alive'
|
||
});
|
||
res.flushHeaders();
|
||
clients.push(res);
|
||
req.on('close',()=>{ clients=clients.filter(c=>c!==res) });
|
||
});
|
||
function broadcast(evt,data){
|
||
const msg = `event: ${evt}\ndata: ${JSON.stringify(data)}\n\n`;
|
||
clients.forEach(c=>c.write(msg));
|
||
}
|
||
|
||
// ---- Dual dock-door endpoint ----
|
||
app.post('/api/readings', async (req,res)=>{
|
||
try {
|
||
const { inbound={}, outbound={} }=req.body;
|
||
const { dockDoor: inD, temperature: inT, humidity: inH } = inbound;
|
||
const { dockDoor: outD, temperature: outT, humidity: outH } = outbound;
|
||
if ([inD,inT,inH,outD,outT,outH].some(v=>v==null))
|
||
return res.status(400).json({ error:'Missing fields' });
|
||
|
||
const hiIn = computeHeatIndex(inT,inH);
|
||
const hiOut = computeHeatIndex(outT,outH);
|
||
const now = new Date();
|
||
const { shift, key, estNow } = getShiftInfo(now);
|
||
shiftCounters[key]=(shiftCounters[key]||0)+1;
|
||
const period = shiftCounters[key];
|
||
const sqlTs = formatDateEST(estNow);
|
||
const shortTs = shortEST(estNow);
|
||
|
||
// insert
|
||
const ins = `
|
||
INSERT INTO readings(location,stationDockDoor,timestamp,temperature,humidity,heatIndex)
|
||
VALUES(?,?,?,?,?,?)`;
|
||
await pool.execute(ins,['Inbound',String(inD),sqlTs,inT,inH,hiIn]);
|
||
await pool.execute(ins,['Outbound',String(outD),sqlTs,outT,outH,hiOut]);
|
||
|
||
// SSE
|
||
broadcast('new-reading',{ location:'Inbound',stationDockDoor:String(inD),timestamp:shortTs,temperature:inT,humidity:inH,heatIndex:hiIn });
|
||
broadcast('new-reading',{ location:'Outbound',stationDockDoor:String(outD),timestamp:shortTs,temperature:outT,humidity:outH,heatIndex:hiOut });
|
||
|
||
// CSV
|
||
const y=estNow.getFullYear(), m=pad2(estNow.getMonth()+1), d=pad2(estNow.getDate());
|
||
const dateKey=`${y}${m}${d}`;
|
||
const [rows] = await pool.execute(
|
||
`SELECT * FROM readings WHERE DATE(timestamp)=CURDATE() ORDER BY timestamp`
|
||
);
|
||
let csvUrl=null;
|
||
try{ csvUrl=await uploadTrendsCsv(dateKey,rows) }catch(e){console.error(e)}
|
||
|
||
// weather
|
||
const weather = await fetchCurrentWeather();
|
||
|
||
// build text
|
||
const text =
|
||
`*_${shift} shift Period ${period} dock/ trailer temperature checks for ${shortTs}_*\n`+
|
||
`*_Current Weather Forecast for Baltimore: ${weather}_*\n\n`+
|
||
`*_⬇️ Inbound Dock Door 🚛 :_* ${inD}\n`+
|
||
`*_Temp:_* ${inT} °F 🌡️\n`+
|
||
`*_Humidity:_* ${inH} % 💦\n`+
|
||
`*_Heat Index:_* ${hiIn} °F 🥵\n\n`+
|
||
`*_⬆️ Outbound Dock Door 🚛 :_* ${outD}\n`+
|
||
`*_Temp:_* ${outT} °F 🌡️\n`+
|
||
`*_Humidity:_* ${outH} % 💦\n`+
|
||
`*_Heat Index:_* ${hiOut} °F 🥵`;
|
||
|
||
const payload = { text };
|
||
|
||
// send as url-encoded string
|
||
const body = `payload=${encodeURIComponent(JSON.stringify(payload))}`;
|
||
await axios.post(process.env.SLACK_WEBHOOK_URL, body, {
|
||
headers:{ 'Content-Type':'application/x-www-form-urlencoded' }
|
||
});
|
||
|
||
res.json({ success:true, shift, period, csvUrl });
|
||
} catch(err) {
|
||
console.error('POST /api/readings error:',err);
|
||
res.status(500).json({ error: err.message });
|
||
}
|
||
});
|
||
|
||
// ---- Area/Mod endpoint ----
|
||
app.post('/api/area-readings', async (req,res)=>{
|
||
try {
|
||
const { area, stationCode, temperature: T, humidity: H } = req.body;
|
||
if (!area||!stationCode||T==null||H==null)
|
||
return res.status(400).json({ error:'Missing fields' });
|
||
|
||
const hi = computeHeatIndex(T,H);
|
||
const now = new Date();
|
||
const { shift, estNow } = getShiftInfo(now);
|
||
const sqlTs = formatDateEST(estNow);
|
||
const shortTs = shortEST(estNow);
|
||
|
||
// insert
|
||
const ins = `
|
||
INSERT INTO readings(location,stationDockDoor,timestamp,temperature,humidity,heatIndex)
|
||
VALUES(?,?,?,?,?,?)`;
|
||
await pool.execute(ins,[area,stationCode,sqlTs,T,H,hi]);
|
||
|
||
// SSE
|
||
broadcast('new-area-reading',{ location:area,stationDockDoor:stationCode,timestamp:shortTs,temperature:T,humidity:H,heatIndex:hi });
|
||
|
||
// CSV
|
||
const y=estNow.getFullYear(), m=pad2(estNow.getMonth()+1), d=pad2(estNow.getDate());
|
||
const dateKey=`${y}${m}${d}`;
|
||
const [rows] = await pool.execute(
|
||
`SELECT * FROM readings WHERE DATE(timestamp)=CURDATE() ORDER BY timestamp`
|
||
);
|
||
let csvUrl=null;
|
||
try{ csvUrl=await uploadTrendsCsv(dateKey,rows) }catch(e){console.error(e)}
|
||
|
||
// weather
|
||
const weather = await fetchCurrentWeather();
|
||
|
||
// build text
|
||
const text =
|
||
`*_${shift} shift ${area} temp check for ${shortTs}_*\n`+
|
||
`*_Current Weather Forecast for Baltimore: ${weather}_*\n\n`+
|
||
`*_${area.toUpperCase()} station:_* ${stationCode}\n`+
|
||
`*_Temp:_* ${T} °F 🌡️\n`+
|
||
`*_Humidity:_* ${H} % 💦\n`+
|
||
`*_Heat Index:_* ${hi} °F 🥵`;
|
||
|
||
const payload = { text };
|
||
const body = `payload=${encodeURIComponent(JSON.stringify(payload))}`;
|
||
await axios.post(process.env.SLACK_WEBHOOK_URL, body, {
|
||
headers:{ 'Content-Type':'application/x-www-form-urlencoded' }
|
||
});
|
||
|
||
res.json({ success:true, csvUrl });
|
||
} catch(err) {
|
||
console.error('POST /api/area-readings error:',err);
|
||
res.status(500).json({ error: err.message });
|
||
}
|
||
});
|
||
|
||
// ---- GET all readings ----
|
||
app.get('/api/readings', async (req,res)=>{
|
||
try {
|
||
const [rows] = await pool.execute(`SELECT * FROM readings ORDER BY timestamp`);
|
||
res.json(rows);
|
||
} catch(err) {
|
||
console.error('GET /api/readings error:',err);
|
||
res.status(500).json({ error: err.message });
|
||
}
|
||
});
|
||
|
||
// ---- CSV export ----
|
||
app.get('/api/export', async (req,res)=>{
|
||
try {
|
||
const [rows] = await pool.execute(`SELECT * FROM readings ORDER BY timestamp`);
|
||
res.setHeader('Content-disposition','attachment; filename=readings.csv');
|
||
res.set('Content-Type','text/csv');
|
||
res.write('id,location,stationDockDoor,timestamp,temperature,humidity,heatIndex\n');
|
||
rows.forEach(r=>{
|
||
const ts = r.timestamp instanceof Date ? formatDateEST(r.timestamp) : r.timestamp;
|
||
res.write(`${r.id},${r.location},${r.stationDockDoor},${ts},${r.temperature},${r.humidity},${r.heatIndex}\n`);
|
||
});
|
||
res.end();
|
||
} catch(err) {
|
||
console.error('GET /api/export error:',err);
|
||
res.status(500).send(err.message);
|
||
}
|
||
});
|
||
|
||
// Start server
|
||
app.listen(PORT, ()=>console.log(`Server running on http://localhost:${PORT}`));
|